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3 years ago

10

Which expression represents an unknown number minus 45?

1 answer:

lara [203]3 years ago

8 0

I believe the answer is : B

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2) A construction contractor used the equation 11.52=(1.44)8 to

Rina8888 [55]

Answer:

2.88

Explanation:

If you break down the equation we see that 8 is the number of boxes and 1.44 is the price of each box. So if you wanted to change the equation the formula would be: (1.44)x = cost so if you wanted to figure out how much 2 boxes would be, you just plug in 2 for x and you get (1.44)2 = 2.88

5 0

2 years ago

Solve for m.<br><br> -5m = -35<br> m = ?

IgorLugansk [536]

-5m = -35

-5m/-5 = -35/-5

m = 7

Answer: m = 7

6 0

3 years ago

Read 2 more answers

What is the slope and y-intercept of y+1=4/3x

Sergio039 [100]

hello

so this equation is written in point slope form: $y-y_{1} = m(x-x_{1})$

we can solve for y to get the equation into slope intercept form: y=mx+b

y+1=4/3x

subtract 1 from both sides

y=4/3x-1

slope: 4/3

y-intercept: -1

hope this helps

have a nice day :)

6 0

2 years ago

Read 2 more answers

Please help me I don’t know how

Goryan [66]

Answer:

6 5/6

Step-by-step explanation:

8

- 1 1/6

We need to borrow from the 8

We will borrow 1 from the 8 and make it a 7. The 1 will be written in the form 6/6

7 6/6

- 1 1/6

-----------------

6 5/6

4 0

2 years ago

Q10<br> Please help me solve this….

kondor19780726 [428]

Answer:

C. 0.23°

Step-by-step explanation:

We are given

$r=\frac{1}{32}v^{2}sin(2\theta)$

Re-arranging this equation (multiply by 32 on both sides and divide by $v^{2}$ on both sides gives us:

$\frac{32r}{v^{2}}=sin(2\theta)$ or

$sin(2\theta)=\frac{32r}{v^{2}}$

Substituting for, r and v we get

$sin(2\theta)=\frac{(32)5000}{4500^{2}}=0.00792\\\\\theta=sin^{-1}(0.0079)=0.4527\\\\\theta=\frac{{0.4527}}{2}=0.2263\approx0.23$

5 0

1 year ago